Aeration machine impeller

Abstract

The invention relates to an impeller of an aerator, which comprises a hollow shaft, a second plate body and / or a third plate body that are arranged alternately and uniformly along the circumference of the hollow shaft, wherein the plate surface of the second plate body is axially parallel with the hollow shaft, the axial included angle between the plate surface of the third plate body and the hollow shaft is less than 90 degrees, the circumferential position of the first plate body is provided with a V-shaped notch with outward opening, the second plate body is arranged at one side of the V-shaped notch, the edge of upper end of the second plate body is higher than the plate surface of the first plate body, moreover the included angle between the edge and the plate surface of the first plate body is Alpha, two sides of the third plate body that the plate surface is triangular are respectively connected with the edge of upper end of the second plate body and the other side of the V-shaped plate body, a water-casting opening is formed between the second plate body and the third plate body, when the impeller rotates, the stirred water body is cast from the water-casting opening, the water body is wrapped into the air during casting, and contacts with the air sufficiently, thereby reaching the effect of aeration to the max extent.

Description

technical field [0001] The invention relates to environmental protection equipment in sewage treatment, in particular to an aerator impeller. Background technique [0002] In order to build a harmonious society between man and nature and promote the continuous progress of society, environmental issues are very important. The country is stepping up efforts to control pollution, among which sewage treatment is one of them. At present, biological processes are mostly used for sewage treatment, and the key technology of this process is the aeration of the oxidation ditch, that is, oxygenation. There are many types of mechanical aeration equipment. With the advancement of technology and the improvement of energy-saving requirements, high-efficiency inverted umbrella surface aerators show their unique advantages and are widely used. The vertical inverted umbrella-type surface aerator is not dirty or clogged during operation, and its pushing, stirring and mixing effects are better...

AI Technical Summary

Problems solved by technology

[0003] At present, in the inverted umbrella surface aerators produced at home and abroad, the water thrown by the impeller does not fully contact with the air during operation, the oxygenation capacity is weak, and a good aeration effect cannot be achieved. The key lies in the structural form of the impeller. The more perfect the structural design of the impeller, the more fully the water thrown by the impeller will be in contact with the air during rotation, and the stronger the oxygenation capacity will be.

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